Automatic hand-firearm.



A. FYRBERG.

AUTOMATIC BAND PIREARM.

APPLICATION FILED 111111.13, 1914.

Patented July 28; '1911 2 SHEETS-SHEET 1.

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UWE/WUR A/1 TTOH/VEYS A. FYRBERG. AUTOMATIC HAND PIREARM.

2 SHEETS-SHEET 2.

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Patented July 2s, 1914.

'IIlllfllllllgflulIlI/llillnWM APPLICATION FILED MAR.13, 1914.

W/ T/VESSES mostre.

annees! Wannee, or

WORCESTER, 'MASSACHUSETTS, ASSIGNOR TO WARNER ARMS CORPORATION, OF NEWYORK, N. Y.

aUToMATio HAND-riesame.

Tall whom it may concern and exact description.

lBe it known thatl, ANDREW FYRBERG, a citizen ofl the United lStates,and a resident of Worcester, in the county 'of Worcester and State ofMassachusetts, have invente'da new and ImproredAutomatic Hand-F 1rearm,di Whichtlie following is a full,clear,

The object of the invention is to provide a new and improved automatichand firearm arranged 'to allow of. quickly and securely fastening thebarrel in position on the frame and allowing removal of the barrel, toengage the sea'r withthe tiring pin 1n the rear 15.

of the magazine and to contro-l the sear from the trigger in front ofthe magazine, to relievev the main recoil spring of the strain 1n- I-after and then pointed out in the claims.

`A practical embodiment oftheinventio-n is represented 1n theaccompanying drawings forming a part of this specification in whichsimilar characters of reference indicate corresponding parts in alitheviews.. i

Figure lis a longitudinal central section of the automatic hand firearm;Fig. 2 is a side elevation of the same'with parts in section and withthe breech block in recoil position; Fig. 3 is a sectional plan view ofthe saine on `the line 3 3 of Fig. l; Fig. tis a similar view of thesame on the line e-l of Fig. l; Fig. 5 is a like view of the saine on:sie

lthe lined-5 of Fig. l; Fig. 6 is a perspective view of the Sear; Fig. 7is a perspective view of the breech block with the recoil rods removed;Fig. 8 1s an enlarged cross section otthe automatic hand firearm on thesection 'line 8-8 of Fig, land F-ig. 9A is ,an enlarge-d cross section'of 'the 4same on 'the line 9-9 of Fig. 1. f I I The frame A of theiirearm is provided with an integral handle B containing a suitable.rem'ovable magazine C for carrying a stack yoi cartridges D deliveredsuccessively into rthe firing end of the bo-reE formed in' the frame A..The breech 'blo'clr F slides in Specification of Letters Patent.

Patented July 28, 1914.

Application led'Marcli 13, `1914.. Serial No. 824,480.

the bearing E and pushes the cartridge Dl i from the said bore into thebarrel 'G during the return movement of the 'breech block. The rear endof the barrel G abuts against the forward end of the frame 'A and thesaid barrel is provided ywith a base G which fits into a recess A formedin the top of a forward projection A2 of the frame A. A screw `H passestransversely through an openmg'G2 in the base G and screws in one sideof the projection A2, and the said screw the frame. A. Nhen the' screw His turned to the position sho-wn in Fig. 1 then thebar, rel Vis securelylocked in frame A. y

The rear end oi: the breech block F is provided with a head F normally'resting against the vnear end of the frame A, and the said head F isprovided at T'ts upper portion with forwardly-extending coil rods-Islid? ingly engaging bores'J formed in the upper portion of the frame A,as plainly indicated in Figs. 3 and S. The forward ends of the 4rods lare provided with heads I normally abutting against the rear end of thebarrel- G and on the said rods are coiled springs K for normally holdingIthe breech block -F in forward position. The bores J are provided neartheir rear ends with shoulders J on place 'on' the H hasa portion H cutout as indicated' in which are seated the rear ends ofthe springs y K,and thesaid bores J 'are provided' intermediate their ends withshoulders J2 adapte ed to be engaged by the heads I to 'li-Init therearward or recoil movement of the breech block F. The recoil rods Iarepassed into the bores .l from their front ends at the time the barrelG is removed from the frame and the rear ends of the said 'recoil rods'I are screwed or otherwise fastened in the head F of the breech block.It' will benoticed that by the arrangement described the' I breech blockF .is properly guidedin its bearing F2 by providing the head .Fwithspringpressed recoil rods engaging the hearing'sjor bores Jseparate'romth'e bearing LE.

vThe breech block F sis1`jjprovide`d vvitlih` centralhere??2 in' theforward end of which is mounted to lslide a firing pin L pressed on by aspring/'N extending with its forward end into a recess formed lengthwisein the firing pin L. The rear end ofl the spring N is provided with aheaded pin N abutting with its head against a pin O screwed or otherwisesecured lin the frame A and projecting upwardly through a slot F formedin the bottom of the breech block F and leadin into the bore F2. By thearrangement escribed the rng pin L is actuated by its spring N which iswholly independent of the recoil springs K for returning the breechblock to forward osition. The rear' end of the -firing pin N 1s providedwith a shoulder L adapted to be engaged by a sear P pvoted at P in theframe A at the hollow handle B and in the rear ofthe magazine C,asvplainly indicated in` Figs. l and 5. The sear P ispressed on by aspring P2 to normally hold the Sear in uppermost' position lwith a Viewto engage the lug L at the time the breech block F is moved rearwardlybythe recoil of the fired shot (see Fig. 2). i

The sear P is provided on one side witha forwardly-extending arm P3arranged alongside the magazine C and hav`- its front terminal P* curvedtransversely 1n front of the magazine C (see Figs. 1 and 5). The frontend P* is adapted to be engaged by the upper end of a do@ or cam Qfulcrumed at Q in a recess in the-back of the trigger R fulcrumed at Ron the extension A2 of the 'frame A. The trigger R is normally held in aforward position by a springv R2 and the dog Q is normally held in arearmost position by a sprino 2 held on the trigger R (see Fig.' l). rlie back of the dog Q is provided with a cam surface Q en aging atransverse pin Q4 attached to the lgiandmle B so that when the trigger Ris pressed and swung rearwardly then the dog Q iscaused to swingforwardly and upwardl doing so it engages the front end 4 of the Seararm P3 thereb imparting a swinging motion to the sear Fin a downwarddirection. When this takes place the free end of the Sear P disengages.the lug L of the firing pin L to allow the firing pin L to move forwardby the action of its spring N compressed during the forward movement ofthe breechblock F. From the foregoing it will be seen that the scar P islocated in the rear of the magazine C but is actuated b the dog Q andtrigger R at the front of t e magal zine owing to the arm P3 extendingforwardly from the scar P to one side of the magazine. It will also benoticed that by the arrangement described the spring N for the firingpin is independent of the recoil springs K so that the latter arerelieved of the duty for actuating the firing pin L when.`

ever the trigger .Ris pressed and the sear arm P3 is unlocked. y

The forward end P4 of the sear arm P3 and in with a fingerpiece S3 topermit. the user of 4 the firearm to impart a swinging motion to thesaid arm S with a view to move the pin `S into or out ofengagement withthe top edge of the sear arm P3. v.Uhen the arm S is in rearmostposition the pin S extends over the top edge of the sear arm P3 and thuslocks the latter against upward movement 'in case the trigger R ispressed ,thus preventing the sear P from disengaging the lug L of thefiring pin L. )Vhen the arm S is swung forward then the pin S moves outof engagement with the top of the Sear arm P3 (see Fig. l) to allow thesear arm P3 to be .swung upward by the dog Q on the user pressing thetrigger R. It is understood that the pin S extends through an elongatedslot formed in the side of the handle B.

Theforward end of the frame A is provided with a lateral opening Eleading from the forward end of the bearing E to the out'l side for thepassage of the 'empty shells. The forward end of the breech block F.isprovided with the usual shell extractor T (see Fig. 4) for extracting anempty shell from the barrel G and drawing it against the ejecting screwV to cause the shell to pass through the opening E to the outside duringthe time the breech block F moves rearwardly and uncovers the opening E.The screw V screws in the frame A and engages a slot F4 (seeFig. 4)provided in one side of the breech block to prevent the breech block Ffrom turning in its bearing. The rear'end of the bore F2 and the slot F3are closed by a screw U screwing in the head F of the breech block F. Itwill benoticed that should the recoil rods I become accidentally brokenthe breech block F is held against.

flying out of the frame A by the pin O to prevent injury to the user ofthe firearm.

Having thus described my invention, I claim as new and desire to secureby Letters Patent:

1. A firearm provided with a frame having a forward projection adistance'from the top of the frame, the latter having a breech blockbearing above the said projection and having recoil rod bearings above'the breech block bearing inthe upper portion of the frame, a barrelremovably fastened to the said projection and having its bore inalinement with the said breech block bearing and having its rear endabutting against the forward end of the frame and closing the fon wardends of the saitl recoil rod bearings, a breech block mounted to slidein the said breech blockbearing, and recoil rods moving` mosaic with'the `said breech block and monnted to slide in the said recoil rodbearings.

2. A firearm provided with a frame having a forward projection adistance from the top of the frame, the latter having a breech blockbearingand recoil rodbearings located above the said breech block'bearing in the "upper portion of the frame, the recoil rod bearingsextending from thefront end of the upper portion of the frame to therear end thereof-and being spaced apart in a .horizontal direction, abarrel removably atthe said breech block' bearing, a breech blockmounted to slide in the said breech block bearing, and spring-pressedrecoil rods moving with thesa'i'd breech block and mounted to slideinthe said recoil rod bearings. v

3. A firearm provided with a frame hav- 'y Y'ing a forward projection adistance from the top of the frame, the latterhaving a breech blockbearing and recoil rod bearings located above the said breech blockbearing in the upper portion of the frame, the recoil rod bearingsextending from the front end of the upper portion of the frame to therear end thereof and being spaced apart in a horizontal direction,afbarrel removably attached to the said frame projection and having itsrear end abutting against the forward end of the frame and closingl theforward ends of the said recoil rod bearings, the bore of the barrelbeing in alinement with the said'breech block bearing, a breech blockmounted to slide in the said breech block bearing and provided at itsrear end with -ahead normally abutting against the rea-rff the frame,and spring-pressed recoil rods attached to the said head and slidablyengaging the said recoil rod bearings.

4. A firearm provided with a frame having a forward projection adistance from the top ofrthe frame, the `latter having a breech blockbearing Vand recoil rod bearings located above the said breechblockbearing in the upper portion of the frame, the recoil rod bearingsextending from the front end of the upper portion of the frame to therear end thereof and being spaced apart in'a horizontal direction, abarrel removably attached to the said frame projection and having itsrearjvlend abutting against the forward end of the frame and closingtheforward ends .of the said recoil rod bearings, the bore of the barrelbeing in alinement with the said breech bloclnbearing, a breech blockmounted to slide iiiD the said breech block bearing and rovided atitsrearvend with a head normal-l-yfabutting against the rear of thefram'and ""spring-pressdmrecoil rods a-ttached-tothesaid head andslidably engaging the said recoil rod bearings, the latter having attheir rear portions interior shoulders and the forward ends of the saidrecoil rods having heads normally adjacent the rear end of the barreland adapted tobe seated on t-heisaid shoulders to limit the recoilmovement of the breech block and recoil rods.

5. A irearm Aprovided with a frame, a spring-pressed breech blockslidable in the said frame and provided with a bore and a slot leadinginto the said bore, a firing pin slidable inthe said bore, aspringpressing with its forward end, the said firing pin, the rear endof the said tiring pin spring being fixed ii the frame to compress thesaid spring during the recoil of the breech block, and a stop held inthe frame and extending through the said slot into the said bore, thelrear "end of the firing pin spring abutting against the said stop.

6. A firearm provided with a trigger mechanism, a sear controlled by thesaid trigger mechanism and having an integral arm provided with acut-out portion, a swing'arm having a ingerpiece under-the control of'the user of the firearm, and a lug extending transversely from the freeend of the said swing arm and standing normally above the said cut-outportion, the said lug being adapted to engage the upper edge of thesaid-sear-arm adjacentV the saidcut-out portion to 4hold the searagainst movement on pressing the trigger.

7. A firearm provided with a frame having a. forward projection adistance from the 1anl top of theframe, the saidyprojection beingprovided with a recess terminatinglat its forward end a distance fromthe forward .end of the said projection, a barrel adaptedto rest on thesaid projection and abutting with its rear end against the forward endof the frame above the said projection, the said barrel being providedwith a base fitting into the said recess to hold the barrel againstforward and backward movement, and a transverse screw screwing in thesaid projection and passing through an'opening. y

in' the said barrel base.

8. A firearm provided with a frame having a, forward projectio-n adist-ance from the top 'of the frame, the `said projection beingprovided with a recess terminating at its forward end a distance fromthe frward end of the said projection, a barrel iis adapted to rest onthe said projection and.'

abutting with its rear end against the`for' ward end of the frame abovethe-said projection, the said barrel being provided with a base fittinginto the said recess to hold the barreihagainst forward and backwardmovement, and a transverse screw' screwing inthe said projection andpassing through, an l opening in the *said* barrel base, the said screwhaving a cut-out portion extending in thi?l base :ind theilatter havingav slot lead- In tegtimony vfieref I hzive,v signed' my ing to thesaid'"opening2 the said slot being name t0 this specir'icatlon in thepresence of normally in 'register .Wlth the said .cut-out twosubscribing Witnesses.

portion and adapted to register with the ANDREW FYRBEBG. 6 portion Qfthe screw adjacent the cutpout Witnesses:

portion' to allow of lifting the barrel out nf GEORGE VJ; BEHRENS,

the frame. Tx-IEODORE HEINNE.

